Figure 13From: A model-based time-reversal of left ventricular motion improves cardiac motion analysis using tagged MRI data A uniform image I ( x, y ) in figure a is labeled with regular grid tags. The operation T [I(x, y)] yields the deformed image in figure b, where the shape and size of the tag cells depict regional variations in motion. Similarly, a donut-shaped disk in figure c is used as a simple model of the left ventricle. Figure d shows the resulting deformed disk.Back to article page